A worldwide computing platform for the blockchain.
Ethereum is the name of the computing platform that allows programmers to create what are called "smart contracts" - essentially wallets (money holding accounts) that are programmable using a programming language called Solidity. You can think of a "programmable wallet" as a bank account with custom rules about how and when money can be transferred. For instance, imagine if you could automatically get an insurance payout when a natural disaster hits your zip code - that might be done in a smart contract some day.

Ethereum uses the cryptocurrency called Ether to pay computers that run Solidity code. Ether can also be used to pay other people. Everyone with an Ethereum wallet has a "public address". Ethereum was invented in 2013 by Vitalik Buterin and currently has no supply limit.

1 ETH = Loading... CAD